SquirrelFish Extreme (SFX) JavaScript Performance

SquirrelFish Extreme is an amalgam of improvements to the JavaScript engine that powers WebKit, made over the course of the last couple months, combined with a brand new form of property caching and a just-in-time compilation has beeb announced. John Resig posted about the latest updates to the fish, SquirrelFish Extreme: A popular technique that is […]

SquirrelFish Extreme is an amalgam of improvements to the JavaScript engine that powers WebKit, made over the course of the last couple months, combined with a brand new form of property caching and a just-in-time compilation has beeb announced.

John Resig posted about the latest updates to the fish, SquirrelFish Extreme:

A popular technique that is gaining traction amongst JavaScript engine implementers is that of optimizing the engine, while it’s still processing the JavaScript code, to determine the “type” of the object that is being used. Since JavaScript doesn’t include any sort of explicit type system JavaScript engines are frequently forced to check and re-check the values that they are handling, to insure their integrity. SFX rounds out the collection of other modern JavaScript engines, namely V8 and TraceMonkey, to provide this form of polymorphic inline caching.[…]

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Source:→ Ajaxian